A spirit level is an instrument used to determine whether a surface is exactly horizontal or vertical.
Spirit level can also refer to:
- Engineer's spirit level, a specialised instrument used to level machinery
- Spirit Level, Australian record label
- The Spirit Level (poetry collection), 1996 poetry collection by Seamus Heaney
- The Spirit Level: Why More Equal Societies Almost Always Do Better, 2009 book by Wilkinson and Pickett
- Spirit levelling, a surveying technique